Question

Refer to Q6 and Q7, and calculate the air dissolved in water?

(a) 0.0228 g/liter

(b) 0.0223 g/liter

(c) 0.0227 g/liter

(d) 0.0222 g/liter

This question was addressed to me in class test.

The query is from Estimating Oxygen Solubility topic in division Mass Transfer of Bioprocess Engineering

Answer 1

The correct choice is (c) 0.0227 g/liter

The explanation is: Since air mainly consists of Nitrogen and Oxygen – the air dissolved in the water can be calculated as:

ca = (0.0089 g/litre) + (0.0138 g/litre)

= 0.0227 g/liter.